CLOUD COMPUTING

VIJAYA LAKSHMI.G

INDEXWhat is cloud computingHow it worksPast ,present, future technologiesOverview of cloud computingApplicationsAdvantages and disadvantagesConclusion

Cloud Computing: Cloud Computing is a type of computing that relies

on sharing computing resources rather than having local servers (or)personnel devices to handle applications.

In cloud computing the word cloud is used as the metaphor for “The internet” so the phrase Cloud Computing means “A type of internet based computing.” where different services such as server , storage & applications are delivered to an organizations computers & devices through the internet.

Father of Cloud Computing is JOHN MC CARTHY

Carthy said “If computers of the kindI have advocated become the computers Of future then computing may someday be Organized as a public utility just as a telephone system . The computer utility Could become the basis of new & important industry”

Cloud Computing:

Working:The goal of Cloud Computing is to apply traditional

super computer , with high performance computing.Cloud Computing uses networks of large groups of

servers typically running low cost consumers PC technology with specialized connections to spread data processing cores across them.

Cloud Computing systems offered by companies like IBM’s “Blue Cloud.”

Working:

Past technologies:The underlying concept of Cloud Computing dates back

to 1950’s.John Mc Carthy said in 1960’s that “The computation

may someday be organized as a public utility.”In 1990’s Cloud Computing extends this boundary to

cover servers as well as network infrastructure.In 2000 after the dot com bubble , amazon played a key

role in all the development of Cloud Computing.

Past technologies:

Present technologies:The need for greater flexibility & lower capital cost is

continuing to increase demand for Cloud based services.

With the announcement of apple’s iCloud , Cloud Computing has been on everyone’s mind at some point over the past few months.

Despite the increased public awareness of the cloud , the majority of the public still find themselves asking; “How does it works?”

Present technologies:The “ Cloud is a simple idea , but a more complex entity.”Some present techniques:

1.The iPad effect on business : The enormous popularity of the iPad has not only been lucrative for apple , it has also shown the world how enterprisers on the spot.

2.Need for cost control : while the “Great recession” may have subsided , uncertainity about the speed & timing of an economic recovery is keeping the pressure on organizations to reduce costs & limit investments until business demand returns.

3.Pricing confusion : In theory , the Cloud Computing marketing is pay-as-you-go . But in practice , it can be hard to discern just what you will pay & just what you will get.

4.Changing landscape : organizations should be thinking of their Cloud Computing strategy as a road map that will help them navigate this increasingly cluttered landscape &arrive at the right set of vendors & solution for their needs.

5.Only the beginning : Cloud Computing only works as an organization manages it . The only path to such a system is through productive strategic thinking well in advance of implementation migrating a service to the cloud is only just the beginning.

Overview of Cloud Computing:Cloud Computing can be thought as an extension to the

existing information technology capabilities.Cloud Computing is categorized into three levels of

services:

1.Infrastructure as a service (IAAS).

2.Platform as a service( PAAS).

3.Software as a service (SAAS)These services serves as the back bone of the Cloud

Computing.

IAAS:It is the access of hardware (server , storage ,

network). It is an evolution of traditional hosting that

does not require any long term commitment & allows users to provision resources on demand.

The IAAS providers will generally provide the hardware & administrative services needed to store applications & a platform to running applications.

PAAS:In the traditional computing model each

application managed locally acquired hardware , an operating system , a data base , middleware , web servers and other software.

The pass makes available a stage to the consumer to execute the much needed applications of the consumer.

SAAS:SAAS is highly flexible , scalable , great

performance with better availability , vast services and less maintenance.

SAAS is always up to date . It runs the most recent version of application.

It eliminates the needs of install hardware or software on the client premises. SAAS offers the software on demand.

Applications:The regular applications are:

1.Gmail.

2.Google maps , sites etc.

3.Drop box.

4.Base camp.

5.High rise.

6.Back pack.

7.Camp fire.

8.Ever note.

Advantages:There are many advantages of Cloud

Computing , some of them are:

1.Achieve economics of sale.

2.Less personnel training is required.

3.Reduce spending on technical infrastructure.

4.Improve flexibility.

Disadvantages:Inspite of many benefits , as mentioned

above , Cloud Computing also has its own disadvantages:

1.Technical issues.

2.Security in the cloud.

3.Prone to attack.

Conclusion:Be prepared. The hype surrounding Cloud Computing is expected to reach unprecedented levels over the next few years.

ANY QUIERIES?

THANK YOUFRIENDS.